More recent scholarship by Daniel Ford has reduced substantially the number of kills claimed by the AVG, but their accomplishments are still impressive. http://www.amazon.com/Flying-Tigers-Chennault-Volunteers-1941-1942-ebook/dp/B003V1WV7U/ref=sr_1_1?s=books&ie=UTF8&qid=1436198932&sr=1-1&keywords=flying+tigers